diff --git a/lldb/test/API/tools/lldb-server/TestGdbRemotePlatformFile.py b/lldb/test/API/tools/lldb-server/TestGdbRemotePlatformFile.py
--- a/lldb/test/API/tools/lldb-server/TestGdbRemotePlatformFile.py
+++ b/lldb/test/API/tools/lldb-server/TestGdbRemotePlatformFile.py
@@ -32,11 +32,11 @@
 
 
 def uint32_or_zero(x):
-    return x if x < 2**32 else 0
+    return x if x < 2**32 and x >= 0 else 0
 
 
 def uint32_or_max(x):
-    return x if x < 2**32 else 2**32 - 1
+    return x if x < 2**32 and x >= 0 else 2**32 - 1
 
 
 def uint32_trunc(x):